Communications: radio wave antennas – Antennas – Microstrip
Patent
1996-09-26
1998-11-03
Le, Hoanganh T.
Communications: radio wave antennas
Antennas
Microstrip
343702, 343846, H01Q 126
Patent
active
058315780
ABSTRACT:
A microwave antenna element comprising a ground plane printed on an insulating substrate and an antenna plate having at least one antenna outlet. The ground plane and the antenna plate are separated by a dielectric, wherein the dielectric separating the plate from the ground plane is air. The antenna plate is constituted by a conductive plate of a shape adapted to the polarization of the transmission microwave vector. The antenna plate has at least two legs formed by stamping and folding which serve to support the plate on the substrate. Each leg passes through a respective orifice in the substrate, at least one of the legs serves not only for support purposes, but also constitutes an antenna outlet. There is a gap in the ground plane surrounding the orifice via which each leg of the antenna outlet passes through the substrate.
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patent: 4849765 (1989-07-01), Marko
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patent: 4994820 (1991-02-01), Suzuki et al.
patent: 5537123 (1996-07-01), Mandai et al.
Gorobets et al, "An Experimental Investigation of a Low-Profile Antenna with Circular Polarization", Telecommunications and Radio Engineering, vol. 43, No. 4, Apr. 1988, pp. 109-111.
H. An et al, "Broadband Circulary Polarised Microstrip Antenna in Two-Sided Structure with Coaxial Probe Coupling", Electronics Letters, vol. 29, No. 3, Feb. 4, 1993, pp. 310-312.
Compagnie Generale d'Automatisme CGA-HBS
Le Hoanganh T.
Phan Tho
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